minimal and elegant git aware shell prompt

ps1.sh

# download jimeh's git-aware-prompt
# https://github.com/jimeh/git-aware-prompt
export GITAWAREPROMPT=~/.gap/git-aware-prompt
source $GITAWAREPROMPT/main.sh

# change your PS1 accordingly
# that'd normally print: `~ $`
# and in a git repo w/o changes: `/path/to/repo(branch-name) $`
# in git w/ changes: `/path/to/repo(branch-name)* $`
# (the asterisk is in red)
export PS1="\[\e[36;1m\]\w\[$txtcyn\]\$git_branch\[$txtred\]\$git_dirty\[$txtrst\] \$ "